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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script type="text/javascript">
        var str1 = '千古壹号' + '永不止步';
        var str2 = '千古壹号' + 666;
        var str3 = '千古壹号' + true;
        var str4 = '千古壹号' + null;
        var str5 = '千古壹号' + undefined;

        var obj = {
            name: '千古壹号',
            age: 28
        };
        var str6 = '千古壹号' + obj;
        console.log(obj);
        console.log(str1);
        console.log(str2);
        console.log(str3);
        console.log(str4);
        console.log(str5);
        console.log(str6);
    </script>
</body>

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